em.cleanup_src() added, required for modules which must be build in the src directory

lib/libem.bash

@@ -1,3 +1,4 @@
+#!/bin/bash
 
 declare -rx SHLIBDIR=$( cd $(dirname "$BASH_SOURCE") && pwd )
 
@@ -138,10 +139,13 @@ declare -x  DOCDIR=''
 declare -x  EM_FAMILY=''
 declare -x  EM_MODULENAME=''
 
+declare -x  CONFIG_DIR="${EM_BASEDIR}/config"
+declare -x  SCRIPTDIR="${EM_BASEDIR}/scripts"
 declare -x  EM_TMPDIR="${EM_BASEDIR}/tmp"
+
+# these directories are module dependend
 declare -x  EM_SRCDIR=''
 declare -x  EM_BUILDDIR=''
-declare -x  CONFIG_DIR="${EM_BASEDIR}/config"
 
 declare -x  EM_BUILD_DEPENDENCIES
 
@@ -375,6 +379,18 @@ function _cleanup_build() {
     );
 }
 
+function em.cleanup_src() {
+    (
+	[[ -d /${EM_SRCDIR} ]] || return 0
+	cd "/${EM_SRCDIR}";
+	if [[ $(pwd) != / ]]; then
+		echo "Cleaning up $(pwd)"
+		rm -rf *
+	fi
+    );
+}
+
+
 function em.make_all() {
 	_set_env
 	if [[ ! -d "${PREFIX}" ]] || [[ ${FORCE_REBUILD} ]]; then

scripts/lua.build

@@ -1,4 +1,7 @@
 #!/bin/bash
+#
+# Lua cannot be build in a seperate directory!
+#
 
 source "$(dirname $0)/../lib/libem.bash"
 
@@ -12,9 +15,10 @@ function em.configure() {
 function em.build() {
         cd "${EM_SRCDIR}"
 
-	make
+	make -j ${JOBS}
 }
 
 em.add_to_family "core"
 em.set_build_dependencies "${COMPILER}"
 em.make_all
+em.cleanup_src

scripts/mathlib.build

@@ -51,4 +51,4 @@ em.add_to_family "compiler"
 em.set_runtime_dependencies "${COMPILER}"
 em.set_build_dependencies "${COMPILER}"
 em.make_all
-
+em.cleanup_src